mirror of
https://github.com/dashpay/dash.git
synced 2024-12-28 13:32:47 +01:00
48 lines
1.4 KiB
C++
48 lines
1.4 KiB
C++
// Copyright (c) 2015-2020 The Bitcoin Core developers
|
|
// Copyright (c) 2017 The Zcash developers
|
|
// Distributed under the MIT software license, see the accompanying
|
|
// file COPYING or http://www.opensource.org/licenses/mit-license.php.
|
|
|
|
#include <fs.h>
|
|
|
|
#include <limits>
|
|
#include <stdio.h>
|
|
#include <string>
|
|
#include <utility>
|
|
|
|
std::pair<bool,std::string> ReadBinaryFile(const fs::path &filename, size_t maxsize=std::numeric_limits<size_t>::max())
|
|
{
|
|
FILE *f = fsbridge::fopen(filename, "rb");
|
|
if (f == nullptr)
|
|
return std::make_pair(false,"");
|
|
std::string retval;
|
|
char buffer[128];
|
|
do {
|
|
const size_t n = fread(buffer, 1, sizeof(buffer), f);
|
|
// Check for reading errors so we don't return any data if we couldn't
|
|
// read the entire file (or up to maxsize)
|
|
if (ferror(f)) {
|
|
fclose(f);
|
|
return std::make_pair(false,"");
|
|
}
|
|
retval.append(buffer, buffer+n);
|
|
} while (!feof(f) && retval.size() <= maxsize);
|
|
fclose(f);
|
|
return std::make_pair(true,retval);
|
|
}
|
|
|
|
bool WriteBinaryFile(const fs::path &filename, const std::string &data)
|
|
{
|
|
FILE *f = fsbridge::fopen(filename, "wb");
|
|
if (f == nullptr)
|
|
return false;
|
|
if (fwrite(data.data(), 1, data.size(), f) != data.size()) {
|
|
fclose(f);
|
|
return false;
|
|
}
|
|
if (fclose(f) != 0) {
|
|
return false;
|
|
}
|
|
return true;
|
|
}
|